Publication detail

Quantitative risk assessment of biogas plant - determination of assumptions and estimation of selected top event

TRÁVNÍČEK, P. KOTEK, L. VÍTĚZ, T.

Original Title

Quantitative risk assessment of biogas plant - determination of assumptions and estimation of selected top event

Type

journal article in Web of Science

Language

English

Original Abstract

Biogas plants are a specific facility from the QRA (Quantitative Risk Assessment) methodologies’ point of view, especially in the case of the determination of the event frequency of accident scenarios for biogas leakage from a gas holder and subsequent initiation. QRA methodologies determine event frequencies for different types of accident events related to vessels made of steel. Gas holders installed at biogas plants are predominantly made of other materials and are often integrated with the fermenter. It is therefore a specific type of gas holder, differing from that which is commonly used in the chemical industry. In addition, long-term experience is not available for the operation of biogas plants, unlike in the chemical industry. The event frequencies listed in the QRA methodologies are not relevant for the risk assessment of biogas plants. This work is focused on setting the prerequisites for QRA of biogas storage, including for example: information on hazardous chemical substances occurring at biogas plants, their classification, and information on the construction of integrated gas holders. For the purpose of the work, a scenario was applied where the greatest damage (to life or property) is expected. This scenario is the leakage of the total volume of hazardous gas substance from the gas holder and subsequent initiation. Based on this information, a “tree” was processed for “Fault Tree Analysis” (FTA), and frequencies were estimated for each event. Thereafter, an “Event Tree Analysis” was carried out. This work follows up on a discussion by experts on the determination of scenario frequencies for biogas plants that was conducted in the past.

Keywords

Biogas; Fault tree analysis; Leakage; QRA; Scenarios

Authors

TRÁVNÍČEK, P.; KOTEK, L.; VÍTĚZ, T.

Released

15. 5. 2019

Publisher

Budapest University of Technology and Economics

Location

Budapest

ISBN

0324-5853

Periodical

PERIOD POLYTECH-CHEM

Year of study

63

Number

3

State

Hungary

Pages from

397

Pages to

405

Pages count

9

URL

https://pp.bme.hu/ch/article/view/13048

BibTex

@article{BUT160541,
  author="Petr {Trávníček} and Luboš {Kotek} and Tomáš {Vítěz}",
  title="Quantitative risk assessment of biogas plant - determination of assumptions and estimation of selected top event",
  journal="PERIOD POLYTECH-CHEM",
  year="2019",
  volume="63",
  number="3",
  pages="397--405",
  doi="10.3311/PPch.13048",
  issn="0324-5853",
  url="https://pp.bme.hu/ch/article/view/13048"
}